Glasse silver-containing

The photochromic lenses contain a thin layer of a silver-containing glass, the silver being in its +1 oxidation state. Absorption of a photon supplies the energy for an electron-transfer reaction in the glass, the product of which is atomic silver ... 

Photochromic dyes, 20 516 Photochromic glass silver in, 22 658, 686 as a solar energy material, 23 5 Photochromic lenses, 6 588, 601-602 Photochromic materials, 6 587-606 inorganic, 6 589-592 organic, 6 592-601 polyoxometalates, 6 591-592 silver halide-containing glasses, 6 589-590... 

Preparation should be in nickel or silver containers because rubidium hydroxide attacks glass. The solution is concentrated by partial evaporation. The commercial product is usually a 50% aqueous solution. 

A glass electrode contains a reference solution of dilute hydrochloric acid in contact with a thin glass membrane, in which a silver wire coated with silver chloride has been embedded. When the electrode is dipped into a solution containing ET ions, the electrode potential is determined by the difference in [H+] between the two solutions. 

A simplified diagram of an IR viewer is shown in Figure 1. IR radiation is focused by the objective lens (typically a 35 mm camera lens) onto the cathode of the IR image tube. The cathode is a glass surface containing a semi transparent layer of materials (silver, oxygen and cesium) which discharge electrons in proportion to the amount of IR radiation... 

Conduct-O-Fil S series - silver coated solid glass spheres. Twelve grades in particle sizes range of 12-92 pm. Materials for conductive adhesives, caulks, coatings, elastomers, greases, inks Conduct-O-Fil SH - silver coated hollow borosilicate glass spheres containing 30 wt% silver Conduct-O-Fil SM - silver coated mica flake... 

In these experiments the silver vessel which contained the substance to be examined had, of course, to be filled with hydrogen instead of with air, in order to facilitate equalization of temperature. To this end there was a little silver capillary in the cover which was rapidly closed airtight with a drop of solder after filling with hydrogen. The glass vessel containing the calorimeter had also to be filled initially with hydrogen, at about 1 cm. pressure, which was pumped off after the temperature of the calorimeter had fallen sufficiently low. 

Chemical glassware is sufficiently resistant to concentrated alkali hydroxide solutions at room temperature that it can be used without adversely affecting the purity of the products. However, hot, concentrated alkali hydroxide solutions attack any glass so strongly that the latter can be used at high temperatures only for short periods of time, if at all. Such experiments must therefore be run in refined silver containers, which resist even concentrated boiling alkali hydroxide solutions. While pure nickel containers are also suitable, they are not cheaper than silver. 

An in situ method for tetrachloroethylene analysis using fiber evanescent wave spectroscopy (FEWS) has been described by Krska et al. (1993). In this method, the water flows through a glass chamber containing a silver halide fiber coated with low-density polyethylene in an amorphous phase. The coating serves to concentrate the tetrachloroethylene, and the compound is detected using infrared spectrophotometry. The detection limit of this method, which was validated using headspace GC, was 1 ppm. 

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